[CentOS] Re: Anaconda doesn't support raid10

Wed May 9 16:48:33 UTC 2007
Ruslan Sivak <rsivak at istandfor.com>

Feizhou wrote:
>
>>>> What advantages, if any, would lvm have over this set up?  
>>>
>>> How about flexible filesystem resizing? If you did it the way I 
>>> suggested: 512MB /boot, 512MB /tmp, you have like 960GB of space to 
>>> carve anyway you like. You also get lvm snapshots which you won't 
>>> get with raid seeing that this is supposed to be a backup server too.
>>
>> Yea, I think for these reasons I will use lvm.  I have set up a 
>> system as follows:
>>
>> /boot raid 1 200mb 4 drives no spares (I guess this makes 4 copies of 
>> the data?)
>
> You have four disks which will be paired into two pairs. If one pair 
> goes, everything goes. Might as well use one pair for /boot and the 
> other for /tmp.
>
I'm not quite sure I understand?  This is raid1, not raid10.  While I'm 
not sure exactly how raid1 works with 4 drives, I'm assuming everything 
is a copy of a copy of a copy...
So how would 2 drives going out kill the whole raid1 device? 

Russ